Milk baths have been well known in spas for hundreds of years for their skin benefits. Vegans can't enjoy a more traditional milk bath since they are opposed to the use of animal milk, but there's still ways to enjoy excellent milk baths if you're a vegan. Here is an article written by aflowercross, on How to Make Your Own Vegan Milk Bath.
What I find interested is the use of coconut milk as a replacement for cows milk. From the milk recipe I received in Lori Nova's class, we used powdered milk that you can find at your local grocery store. I do not think that coconut milk came in a powdered form, but if you cannot find it in powdered form there are probably other non-dairy powdered milks out on the market. But any rate this would be a great for someone you know who is a vegan.